Home / Standards / GB/T 896-2020 GB/T 896-2020 Active “E” rings 开口挡圈 Standard Type GBT ICS 21.060.30 CCS J13 Status 现行 Issue Date 2020-03-31 Implementation 2020-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A